
Phonak’s transductive loop technology is the only analog transmission technology that guarantees wearers of in-ear receivers 100% interference-free communication.
The crackling and hissing in the ear caused by electromagnetic interference (EMI) from alarm systems, vehicles and other electronic circuits can quickly lead to unclear communication and, in the worst case, can cause undercover investigations to fail. Similarly, failure can also result from a large and obvious earpiece being spotted by a surveillance target

Profilo WL-Kit AC
The crackling and hissing in the ear caused by electromagnetic interference (EMI) from alarm systems, vehicles and other electronic circuits can quickly lead to unclear communication and, in the worst case, can cause undercover investigations to fail. Similarly, failure can also result from a large and obvious earpiece being spotted by a surveillance target.
Profilo WL-Kit AC 3.5
Extension of the WL Kit by adding a 3.5-mm stereo jack. With this transduction kit, communication is controlled via a PTT button in the form of a key ring. In addition, the junction box contains an integrated PTT button.

Wiring
The Profilo Nano system is available with different wiring kits.
Frequently Asked Questions
Length / width / weight
16.4 mm / 9.7–10.9 mm / 1.3 g (including battery)
Interference blocker
Transductor including EMI shield
Type of receiver
Digital with DSP modulation and processing
Available colours
Beige/dark brown
Max. sound pressure level, automatically limited
100 dB(A) SPL*
Frequency band
200 Hz – 5000 Hz
Background noise filter
Soft squelch
Battery type / average life
Zinc-Air, size 10 / 80 hrs.
End-of-battery-life warning
3 x 2 beeps
Temperature range (storage)
-20°C to +60°C
Temperature range (operation)
-10°C to +60°C
Microphone (integrated in the transductive loop)
Omnidirectional electret microphone
Frequency band
101 Hz – 10 kHz
Sensitivity at 1 Hz (dB re 1V / 1PA)
-34.0 + / -3 dB












